摘要
分析微波频率和道面材料特性对机场道面微波除冰效率的影响。运用COMSOL Multiphysics建立微波除冰仿真模型,采用自主设计的微波除冰装置进行试验研究。以混凝土表面升温至0℃的升温速率作为除冰效率的评价指标。研究结果表明:微波能够透过冰层加热混凝土,使冰层与混凝土表面脱离;相对于频率为2.45 GHz微波,频率为5.8 GHz微波穿透深度降低到45%,除冰效率提高了5倍左右;相对于普通混凝土,掺入"铁黑"吸波材料的混凝土除冰效率提高了1.8倍左右;仿真结果与试验结果较接近,验证了仿真模型具有较高的准确性,微波除冰方法具有一定的可行性。
The effects of microwave frequency and pavement material type on microwave deicing efficiency were investigated.The microwave deicing simulation model was established by using COMSOL Multiphysics.The experiment research was carried out with self-designed microwave deicing device to validate the rationality of simulation model.The temperature rising rate of concrete surface heating up to0℃was used to be as an evaluating indicator for deicing efficiency.The results show that the ice layer hardly absorbs microwave energy and microwave can penetrate through the ice layer to heat up concrete,then the ice and the concrete surface detach.Compared with2.45GHz microwave,5.8GHz microwave has a low heating depth and high deicing efficiency,with heating depth reduced by45%and deicing efficiency increased by about5times.Compared with ordinary concrete,the incorporation of“iron black”in concrete can increase the deicing efficiency to about1.8times.The simulation results are similar to experiment results,which shows the simulation model has a high accuracy,and the microwave deicing is feasible.
作者
陆松
许金余
白二雷
刘俊良
LU Song;XU Jinyu;BAI Erlei;LIU Junliang(Department of Airfield and Building Engineering, Air Force Engineering University, Xi’an 710038, China;College of Mechanics and Civil Architecture, Northwest Polytechnic University, Xi’an 710072, China)
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2017年第12期3366-3372,共7页
Journal of Central South University:Science and Technology
基金
国家自然科学基金资助项目(51208507
51378497)~~
